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http://dx.doi.org/10.7840/KICS.2012.37.7A.552

Synchronization Design of Satellite TDMA Network  

Ko, Kyung-Su (LIG넥스원 통신연구센터)
Oh, Il-Hyuk (LIG넥스원 통신연구센터)
Yoo, Youn-Sang (LIG넥스원 통신연구센터)
Oh, Sang-Kyun (국방과학연구소)
Lee, Hui-Soo (국방과학연구소)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.37, no.7A, 2012 , pp. 552-559 More about this Journal
Abstract
In this paper, we introduce a frame structure of the satellite TDMA network and the synchronization method thereof. The primary station transmits a special burst called reference burst which provides reference time to network. By using this reference burst all nodes achieve initial acquisition and synchronization. We consider time drift due to the node and satellite mobility, time shift due to the node position, Doppler shift due to the node mobility and frequency offsets as important factors of the frame structure. Simulation results show that the proposed frame structure and synchronization method guarantee accurate synchronization performance when the node is even in low SNR as well as 25 kHz frequency offsets.
Keywords
synchronization; acquisition; TDMA; satellite; reference burst; frequency offsets;
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